VBScript

Export Selected PFX Contents as PEM

Demonstrates Pfx.ToPemEx, which exports selected PFX contents as PEM-formatted text with control over which parts are included and how private keys are encrypted.

Background. Private keys are written in PKCS #8 form. Supported key-encryption algorithms include aes128, aes192, aes256, and 3des; leaving the algorithm empty produces unencrypted keys.

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VBScript

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

set pfx = CreateObject("Chilkat.Pfx")

'  The file path is relative to the application's current working directory.  An absolute path
'  may also be used.  Supply the path appropriate to your own environment.
'  The PFX password should come from a secure source rather than being hard-coded.
password = "myPfxPassword"
success = pfx.LoadPfxFile("qa_data/identity.pfx",password)
If (success = 0) Then
    outFile.WriteLine(pfx.LastErrorText)
    WScript.Quit
End If

'  Export selected PFX contents as PEM-formatted text.  The boolean arguments control what is
'  included: extended attributes, and whether to omit private keys, certificates, or CA certificates.
bExtendedAttrs = 0
bNoKeys = 0
bNoCerts = 0
bNoCaCerts = 0

'  Encrypt the exported private keys.  Supported algorithms include aes128, aes192, aes256, and 3des;
'  leave the algorithm empty for unencrypted keys.  The key password should come from a secure source.
keyPassword = "myKeyPassword"
pem = pfx.ToPemEx(bExtendedAttrs,bNoKeys,bNoCerts,bNoCaCerts,"aes256",keyPassword)
If (pfx.LastMethodSuccess = 0) Then
    outFile.WriteLine(pfx.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine(pem)

outFile.Close